I have a D-Link DES 3226S Switch in my Lab, now I want to reconfigure it. Kindly help me.

I think you will have to reset it via the rs232 console port connection mode via a console emulator on the p.c.
It is similar thing in cisco equipment this link explains the type of process to do this
http://www.dlink.cc/d-link-switch/how-to-the-reset-the-password-on-d-link-des-3526.html
I think if you search for
DES-3226S resetting password via console port
in a search engine you might find a more specific link to a method.
https://www.google.com.au/url?sa=t&rct=j&q=&esrc=s&source=web&cd=8&cad=rja&uact=8&ved=0ahUKEwjE6cSvzeXVAhVBC8AKHUqrAIsQFghMMAc&url=ftp%3A%2F%2Fftp.dlink.de%2Fdes%2Fdes-3226s%2Fdocumentation%2FDES-3226S_man_en_revALL_CLI-Reference_ALL_051213.pdf&usg=AFQjCNGsRXh5AzlIVEWQY5P2HUX8OF-6Dg
https://www.youtube.com/watch?v=ADp6DolzW-Q
https://networkengineering.stackexchange.com/questions/5476/how-to-factory-reset-the-d-link-dgs3224tgr-switch

u need to replace the switch,

My First option is to restore the switch to factory default once and then reconfigure the switch.

What is the IOS running on the DES-1024D ?
Are you getting any error message in the log when the switch is hanging. ( through console connection).

Second Option is to upgrade the IOS to a recent one.

Go here->link.

The Switch's factory default IP address is 10.90.90.90
with a subnet mask of 255.0.0.0 and a default gateway of 0.0.0.0.
Often set up by rs232 connection

See
ftp://files.dlink.com.au/products/DES-3226S/QuickInstallGuide/Generic_QIG_for_Managed_Switches_v1.03.pdf

and
http://support.dlink.com.au/Default.asp

Hello,
I suggest you reconfigure you network. Maybe your configuration authorizes only one IP adress on the network.

Try to reset your router to defaults to see if that solve your problem. After that you will have to reconfigure the router.

Hope it helps.

kindly download your driver by internet

Here's a link to the user manual and other information that will help you.

http://www.retrevo.com/search/v2/jsp/mytrevo/myTrevo.jsp?page=man

The DES-3526 has a lot of features and it would be quite hard to teach you everything through FixYa.

I suggest you start by carefully reading the manual. Everything is very well documented:
ftp://ftp.dlink.com/Switch/des3526/Manual/des3526_Manual_500b27.zip

Then, once you have learned more about it, if you still have problems, feel free to write back and we will help you.

Check the cabling. Could possibly be a broken pair in the cable. Make sure all ends are not damaged.